Laser sight alignment

I have a laser sight 2.0 and it does not match with a mill end. How can I adjust the position of laser sight?Another issue is if I turn it on, it only stays a few minutes then it dims even with a new battery.I bought it this March, if it has a defect, can I replace it?

I sent a message through 'Contact US!' in handibot.com but I didn't get any reply yet.Thanks.

I've ordered some higher current capacity batteries to try out--The line lasers run on between 2.5VDV and 5VDC--The CR2032 batteries are 3V batteries--but it appears that they may be draining too quickly while the laser is on. I'll follow up here as soon as I've got ahold of some new batteries to test.

I currently order mine through digikey--though there's no telling how long each has been on the shelf there. The ones that I just ordered are like 250mAh which should be double what we were getting previously.